The present investigation has been carried out to find the proximate composition, amino acids, metal contents, oil composition as well as the antioxidant capacity of the seeds of Ipomoea hederacea Jacq. and Lepidium sativum L. Proximate composition indicated a great difference in oil (14.09±0.66, 28.03±1.05) and fibre (16.55±0.31, 6.75±1.20) contents for I. hederacea and L. sativum, respectively. Fatty acid profile indicated that oleic acid (19.50 ± 0.37, 30.50 ± 0.16) and linoleic acid (52.09 ± 0.48, 8.60 ± 0.38) are major fatty acids. γ-Tocopheol and alfa-tocopheol (28.70 ± 0.14, 111.56 ± 0.37) were the most abundant in the seed oil of I. hederacea and L. sativum, respectively. Results of antioxidant assays like TEAC, FRAP and TRAP indicated that L. sativum has much greater antioxidant potential than I. hederacea.
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